class_docstr: Base class for TurntableCamera and ArcballCamera
docstr: Update rotation parmeters based on mouse movement
docstr_tok: ["Update","rotation","parmeters","based","on","mouse","movement"]
code: def _update_rotation(self, event):
      """Update rotation parmeters based on mouse movement"""
      raise NotImplementedError
  
imports: from __future__ import division
  import math
  import numpy
  from .base_camera import BaseCamera
  from ...util import keys, transforms
  from ...visuals.transforms import MatrixTransform
label_desc: Use image node_id 8 for calling the Base3DRotationCamera obj's underlying member method code with example usage: obj._update_rotation(event) without return types